QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

38 km WSW of Ackerly, Texas

· 8.2 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Martin County 14 kmDawson County 43 kmAndrews County 52 kmHoward County 62 kmMidland County 63 kmGaines County 65 kmEctor County 71 kmBorden County 73 kmGlasscock County 78 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 1.9 (ml)
Depth
8.2 km below the surface
Felt
no reports yet
Nearest
Martin County, 14 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 498 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

Where

Epicentre 32.3790, -102.0920. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Martin County, TX 14 km (9 mi) WNW of here earthquakes near Martin County
Dawson County, TX 43 km (26 mi) SSW of here earthquakes near Dawson County
Andrews County, TX 52 km (32 mi) E of here earthquakes near Andrews County
Howard County, TX 62 km (38 mi) W of here earthquakes near Howard County
Midland County, TX 63 km (39 mi) N of here earthquakes near Midland County
Gaines County, TX 65 km (40 mi) SE of here earthquakes near Gaines County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

56 earthquakes have been recorded within 50 km since this one.

  1. 2.1 5 km SSE of Midland, Texas
  2. 2.8 34 km WSW of Ackerly, Texas
  3. 2.8 17 km NW of Midland, Texas
  4. 1.6 16 km NW of Midland, Texas
  5. 2.8 21 km SSW of Ackerly, Texas
  6. 2.3 35 km WSW of Ackerly, Texas
  7. 1.5 31 km WSW of Ackerly, Texas
  8. 2.0 35 km SSW of Los Ybanez, Texas
  9. 1.8 34 km WSW of Ackerly, Texas
  10. 1.8 34 km WSW of Ackerly, Texas
  11. 1.9 36 km NW of Stanton, Texas
  12. 1.9 33 km WSW of Ackerly, Texas
  13. 1.6 35 km WSW of Ackerly, Texas
  14. 2.3 34 km WSW of Ackerly, Texas
  15. 1.7 17 km SSE of Ackerly, Texas

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

For this area

The largest earthquake within 50 km in our catalogue was M 5.2 on 2022-12-16 — it released about 89,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.